1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
vesna_86 [32]
3 years ago
9

During two years, the population of birds of an island became 7 times more than before. If the first year increase in the popula

tion was 40% , what was the percent increase of the second year?
Mathematics
1 answer:
nordsb [41]3 years ago
6 0

Answer:

The percent increase of the second year is 400%.

Step-by-step explanation:

Consider the provided information.

Let the population of birds was x.

After 2 years the population becomes 7 times more than before.

Therefore, after 2 years population is 7x.

In first year increase in the population was 40%.

Population after 1st year = x + 40% of x

Population after 1st year = x + 0.40x

Population after 1st year = 1.4x

The population increase from 1st year to 2nd year is: 7x-1.4x=5.6x

Thus the percentage increase is:

\% increase=\frac{5.6x}{1.4x}\times100=400\%

Hence, in second year the population of birds increase by 400%.

You might be interested in
Solve each of these equations. Explain or show your reasoning.
defon

Answer: Answers are in the pictures

4 0
3 years ago
What is the distance between -4/3 and 1/3
Artist 52 [7]

Answer:

5/3

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
What is the end behavior of the polynomial function graphed below?
Afina-wow [57]

Answer:


Step-by-step explanation:

The answer is C

5 0
3 years ago
How many times can 9 go into 65
Rashid [163]
I think the answer is 7. 
8 0
3 years ago
Read 2 more answers
A scaled factor of 2 is used to increase the triangle. What is the new area?
lesya [120]

Answer:b

Step-by-step explanation:b

8 0
3 years ago
Other questions:
  • Multiply out (x-2y)z-2x(x+z)
    13·2 answers
  • #1 Combine like terms (AlgebraTiles) 3y2+3y2 #2 -3x2-3x2 #3 X2-3x2
    10·1 answer
  • Increase $200 by 50%. PLEASE HELP ME!
    14·1 answer
  • How much water will be needed to completely fill a rectangular vase that has a length of 4 inches, a width of 4 inches, and a he
    11·1 answer
  • Read Picture :) Thanks!
    9·1 answer
  • Digital Cameras
    15·1 answer
  • Find the inverse of h(x) = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B2x%2B6%7D%7B5%7D" id="TexFormula1" title="\frac{2x+6}{5}"
    7·1 answer
  • Help me!! i am not good at this virtual algebra stuff
    7·1 answer
  • Hey please help me with this
    12·2 answers
  • The Napoli family combined two bags of dry cat food in a plastic container. One bag had 5/
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!